List of Fast IO w/ 6-button Support

[daskrabs]

I'm trying to put together a comprehensive list of verified FAST IO PCBs according to model number with 6-button support. Here goes:

Supports 6 buttons, With JAMMA edge
K91X1204A
K91X1204B

Supports 6 buttons, Without JAMMA edge
K91X1202A
K91X1243C
K91X1252A

Supports 4 buttons ONLY
K91X1243A
K91X1243B
K91X1234A
K91X1234B
K91X1234C

Let me know if anything should be added or removed.

 

[Chron]

I have one and from what I can tell the K91x1243C only supports 4 buttons. Ive been referring to this list so just thought I would mention it

 

[Baba]

I'm trying to put together a comprehensive list of verified FAST IO PCBs according to model number with 6-button support. Here goes:

Supports 6 buttons, With JAMMA edge
K91X1204A
K91X1204B

Supports 6 buttons, Without JAMMA edge
K91X1202A
K91X1243C
K91X1252A

Supports 4 buttons ONLY
K91X1243A
K91X1243B
K91X1234A
K91X1234B
K91X1234C

Let me know if anything should be added or removed.

Hi there,
Do you know the difference between K91X1204B and K91X1204A I/O?

Thank you.

 

[daskrabs]

Hi there,
Do you know the difference between K91X1204B and K91X1204A I/O?

Thank you.

No idea. They're identical as far as I know.

 

[Lemony Vengeance]

I’ve been pouring through these firmwware revisions (because, let’s face it, it’s all the same PCB, these are all differing firmware revisions). And trying to link up which games use which firmwares.

Reason being, some firmwares have different power requirements than others. insane, I know, but how can the same hardware on one cab have a 24v pin for power, but another game not have it populated, or have it used for 12v? 🤯

Additionally, the games are probably not all compatible with every IO. I’m still digging into this, but I have two spare K91X1234A and one K91X1243A, and neither of them will work with groove coaster. They all throw an IO error. I’m thinking this is due to the previously mentioned voltage shenanigans, so I’m going to get to the bottom of this.

Here’s what I know:

K91X1243A - Theatrhythm, Puzzle and Dragons, DariusBurst Another Chronicle
K91X1252A - Groove coaster

If anyone can add to this list I would really appreciate that.

 

[daskrabs]

Thanks Lem.

I'll add that, based on my research, the Lattice CPLDs on these devices most likely include a "read fuse" where if someone would try to, in our case, dump the firmware to flash on a different IO, the fuse would blow and render the chip inoperable. This would mean that 4-button IOs could never be flashed to 6-button. If anyone can confirm or deny, please chime in.

 

[Lemony Vengeance]

Thanks Lem.

I'll add that, based on my research, the Lattice CPLDs on these devices most likely include a "read fuse" where if someone would try to, in our case, dump the firmware to flash on a different IO, the fuse would blow and render the chip inoperable. This would mean that 4-button IOs could never be flashed to 6-button. If anyone can confirm or deny, please chime in.

That’s effing whack.